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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int myStrlen(char s[]){
  5.     int i;
  6.     for(i = 0; s[i] != '\0'; i++);
  7.     return i;
  8. }
  9.  
  10.  
  11. char *setPalindrome(char s[]){
  12.     char *tmp;
  13.     int len, i;
  14.  
  15.  
  16.     len = myStrlen(s);
  17.  
  18.  
  19.     tmp = (char *)malloc(sizeof(char) * (2 * len + 1));
  20.     if (tmp == NULL){ 
  21.         return NULL;
  22.     }
  23.  
  24.  
  25.     for (i = 0; i < len; i++){
  26.         tmp[i] = s[i];
  27.     }
  28.  
  29.  
  30.     for (i = 0; i < len; i++){
  31.         tmp[len + i] = s[len - 1 - i];
  32.     }
  33.  
  34.  
  35.     tmp[2 * len] = '\0';
  36.  
  37.  
  38.     return tmp;
  39. }
  40.  
  41.  
  42. int main(){
  43.     char nyuryoku[1024]; 
  44.     char *kaibun;    
  45.  
  46.     scanf("%s", nyuryoku);
  47.  
  48.  
  49.     kaibun = setPalindrome(nyuryoku);
  50.  
  51.     printf("%s\n  -> %s\n", nyuryoku, kaibun);
  52.  
  53.  
  54.     free(kaibun);
  55.     return 0;
  56. }
  57.  
  58.  
  59.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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absd
stdout
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absd
  -> absddsba
https://ideone.com/b1NmYp
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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